low-cal

The word "low-cal" is a modern compound adjective formed within English. Its first element, "low," originates from a Germanic root meaning "not high," which evolved to describe small quantities or degrees. The second element is a truncated form of "calorie," a term coined in the 19th century from Latin calor ("heat"). The compound logically and transparently combines these elements: "low" specifies a reduced amount, and "cal" specifies the unit of food energy, directly creating the meaning "having a low number of calories." This formation follows a common pattern in English for creating informal, often hyphenated, descriptive terms related to diet and nutrition.

Structure: low (little) + cal (calorie) low: From Old English hlāw, hlǣw ("mound, hill"), later influenced by Old Norse lágr ("low"). In this compound, it functions as an adjective meaning "small in amount or degree." cal: A clipping or shortening of the noun "calorie." It functions as the core noun element, specifying the substance (energy units from food) of which the amount is low.